Chief Minister Manohar Lal Khattar has been fielded again from Karnal.
Maharashtra and Haryana voted in assembly elections on Monday. Several prominent personalities also exercised their franchise.
Here's how the heavyweights are faring.
Extensive arrangements have been made due to the COVID-19 pandemic including personal protective equipment kits for election staff, more polling booths, thermal screening, sanitisers, masks and gloves for voters and markings to ensure social distancing, officials said.
The counting will begin at 8 am, and as per the Election Commission's COVID-19 guidelines, a candidate, his poll agent and counting agent can remain present in the counting hall, officials said, adding various measures have been taken to ensure social distancing and avoid crowding.
Prime Minister Narendra Modi urged people to vote in large numbers. "Today, there are bypolls taking place in various places across India. I urge those voting in these seats to vote in large numbers and strengthen the festival of democracy," he said in a tweet.
In Maharashtra, where the 'Mahayuti' alliance of BJP, Shiv Sena and smaller parties is against the 'Maha-agadhi' led by the Congress and the Nationalist Congress Party whereas the ruling BJP is locked in a contest with the opposition Congress and the fledgling Jannayak Janata Party for the 90 assembly seats in Haryana.
Counting of votes is underway in assembly byelection to 58 seats in 11 states including Madhya Pradesh where the results will decide the fate of the Shivraj Singh Chouhan government.
Political observers feel that the outcome of the elections weighs in favour of the BJP which had won a massive mandate in the Lok Sabha elections, held earlier this year.